Access Road Cross Section Survey of Upper Modi Hydroelectric Project

Access Road Cross Section Survey of Upper Modi Hydroelectric Project

Access Road Cross Section Survey of Upper Modi Hydroelectric Project

Project: Upper Modi Hydroelectric Project

Assignment: Access Road Cross Section Survey of Upper Modi Hydroelectric Project

Location: Kaski District, Nepal

Client: Nepal Electricity Authority

Duration:  November 2018 to December 2018

Project Description: Upper Modi A HEP is RoR hydroelectric project located in Modi River of Kaski District. The installed capacity of the project is 42 MW with design discharge of 17.4 m3/s and gross head of 287.69 m; 30m long and 7m high free flow weir; 3.85m dia HRT of length 5,948m; 2.5m dis 250m long drop shaft; 36m x 15m x 28.2m surface powerhouse housing two units of vertical shaft Pelton turbines 21 MW each.Upper Modi HEP is proposed to be developed as a cascade of Upper Modi A HEP. The flow from tailrace of UMAHEP is diverted to UMHEP through interconnection arrangement/ The installed capacity of the project is is 18.2 MW with design discharge of 17.4 m3/s and gross head of 133m; interconnection head-pond 719m long box culvert; 3.85m dia 4223 m long HRT; 10m dia, 37m high surge tank; 33m x 15.5m x 25m surface powerhouse housing two units of vertical shaft Francis turbines.

Scope of Services:

1. Gathering and transportation of necessary equipment required to carry out the survey works;
2. Establishment of permanent Benchmark along the road way at every 10 m interval;
3. Cross-section survey of road at least 10 m interval and 30 m right of way;
4. Cross-section survey of features like stream, small kholsi, canal abruptly changed ground condition, sharp bends areas, steep areas etc. if they come between the interval of 10 m;
5. Center line marking of the existing road, edges, slopes and trace with sufficient point density for earthwork quantity calculation purpose prior to the widening of road;
6. Marking of chainage in the ground with enamel paints; and
7. Reporting and Data submission in both hard copy and editable format.
8. Equipment Used:
   a) Hiper HR DGPS-2 sets
   b) Total Station-2 sets